CN101688354B - Method of controlling a tumble laundry drier - Google Patents
Method of controlling a tumble laundry drier Download PDFInfo
- Publication number
- CN101688354B CN101688354B CN2008800140349A CN200880014034A CN101688354B CN 101688354 B CN101688354 B CN 101688354B CN 2008800140349 A CN2008800140349 A CN 2008800140349A CN 200880014034 A CN200880014034 A CN 200880014034A CN 101688354 B CN101688354 B CN 101688354B
- Authority
- CN
- China
- Prior art keywords
- tube
- electrodes
- resistance
- conductivity
- threshold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000001035 drying Methods 0.000 claims abstract description 32
- 238000010409 ironing Methods 0.000 claims abstract description 19
- 230000001052 transient effect Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
- D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/08—Humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/08—Humidity
- D06F2103/10—Humidity expressed as capacitance or resistance
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/26—Imbalance; Noise level
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/28—Air properties
- D06F2103/32—Temperature
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/62—Stopping or disabling machine operation
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Drying Of Solid Materials (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
A method of controlling a tumble laundry drier (1), the method including the steps of : starting a drying/ironing cycle and feeding drying air into the drum (5) from a drum input to a drum output; continuously measuring the electrical resistance/conductivity between two electrodes (25) located on the inside of the door; estimating the weight of the laundry inside the drum (5); measuring a temperature of the drying air at the drum output; stopping the drying/ironing cycle, if the weight of the laundry is above a weight threshold, when the electrical resistance/conductivity between the two electrodes (25) is above/below a resistance/conductivity threshold; and stopping the drying/ironing cycle, if the weight of the laundry is below a weight threshold, when the electrical resistance/conductivity between the two electrodes (25) is above/below a resistance/conductivity threshold and also when the temperature of the drying air at the drum output is above a temperature threshold.
Description
Technical field
The present invention relates to index drum formula dryer, preferably the method for household clothes dryer.
Background technology
The family expenses tumbler dryer condensation of standard blows to the thermal current in the drying, and this thermal current is removed the moisture of clothing; And the Qianmen of the panel type that the front end inlet of tube is hinged is closed.More specifically, known dryer comprises that ventilating system (promptly, the air blast that normally comprises fan and electric fan motor) and heater, this heater is drawn air and is blown to the cloth drying tube by suitable plumbing installation heating and with air from the outside.Subsequently, the dry air of heat is directly discharged or is fed to condensing unit from dryer, to be condensate in the moisture of collecting in the hot-air.
In the past, the duration of dry cycle is constant and predetermined.But, it is variable wanting the weight and the initial humidity of the clothing of drying, make that fixedly the dry cycle of duration may be lacked (promptly very much, when dry cycle finishes, clothing is still too wet, therefore dry cycle is unfruitful) or oversize (that is, dry cycle has been used too many energy, is inefficient therefore).
Modern roller dryer adopts the relative humidity of sensor with measurement clothing in dry cycle usually, and relies on user-selected dry cycle, stops dry cycle when the humidity of clothing reaches set-point.Measuring the valid approach of humidity is directly to measure the electrical conductivity of clothing.Have multiple solution to sell on market, these schemes are measured tube and are fixed to electrical conductivity between the metal insert of a water discharge outlet or tappet (lifter), and perhaps tube is divided into electrical conductivity between two halves and the measurement in these schemes.
This back being limited in of a kind of method is imposed to the constraint of tube, and in this case, tube must be made and can not served as a contrast soft material by any conductive material (for example, stainless steel), and Bao silicon layer for example is because they insulate.Therefore, a kind of method in this back can not be used in the roller dryer, because " the soft processing " of clothing realized by serving as a contrast soft material to tube in the roller dryer.
In order to design the tube of not forcing constraint,, a kind of new what is called " guiding systems of rationing the power supply " has been proposed based on a pair of not small electrode of movable part of the inboard machine of door for example that is fixed to by the humidity system.Should a plurality of weakness be arranged " guiding systems of rationing the power supply is arranged " (nowadays being very general in the roller dryer on market): because limited contact surface between electrode and the clothing, this system is quite insecure in time stopping aspect the dry cycle, especially (for example for little load, less than 1kg) and wet circulation (final moisture content that for example, surpasses 3-4%).Even for gauge load with do circulation, in some cases, because the condition during loop ends is not fully repeatably, so also can go wrong.Test shows that the roller dryer of utilization " guiding systems of rationing the power supply is arranged " seldom in time stops dry cycle to the load less than 1kg; And for wet circulation, even the load of 2kg also has problem.
In other words,, be very difficult to the enough reliable algorithm of (if not impossible words) design for this electrode that is fixed to an inboard, under the situation of little load and/or wet circulation, in time to stop dry cycle.
Fig. 1 shows relatively the chart (about the load of about 3kg) of second voltage signal that utilizes first voltage signal that " traditional electrical guiding systems " record and utilization " guiding systems of rationing the power supply to be arranged " to record, wherein when utilizing " traditional electrical guiding systems " to measure tube be divided into two halves and measure between electrical conductivity (dotted line), and a pair of small electrode is fixed to the inboard (solid line) of door when utilizing " guiding systems of rationing the power supply is arranged " to measure.In " traditional electrical guiding systems ", clothing always contacts well with electric guiding systems, even for very little load (less than 1kg) too, so voltage signal very level and smooth and regular (dotted line among Fig. 1).On the contrary, in " guiding systems of rationing the power supply ", the contact surface between two electrodes and the clothing is quite limited, so voltage signal is erratic (solid line among Fig. 1).In addition, the chart of Fig. 1 relates to the 3kg load; If we consider littler load, then worse about the situation of " guiding systems of rationing the power supply is arranged ", the traditional electrical guiding systems is then always reliable.
US4531305 discloses a kind of dryer, wherein monitors the resistance and the delivery temperature of wet wash.When the resistance that is monitored is instantaneous when reaching predetermined value, detect the time rate of change that institute's monitor temperature changes, how long to keep operation to estimate dryer; And when the estimated time cycle finished, the thermal cycle of dryer was cut off.
EP0388939 discloses a kind of dryer, and this dryer comprises rotating cylinder, the motor that is used for driving this rotating cylinder, the electric heater that is used for heats laundry, the temperature sensor that is used to detect the rotating cylinder temperature that are used for wet wash, is used to detect the absolute humidity sensor of rotating cylinder absolute humidity and is used for the response temperature sensor and absolute humidity sensor output and the control appliance of control dryer operation in shell.This control appliance comprises the circuit arrangement that is used to respond the output of absolute humidity sensor and power is provided to electric heater.
EP1420104 discloses a kind of processing that is used for the clothing outer cover (laundryenclosure) or the tube clothing of dry drying equipment, drying equipment wherein for example is a drying machine, washing machine or drying box with Water Extraction Machinery, this processing is included in by heater heating and is fed to one or more steps of drying clothes in the air-flow of clothing outer cover by ventilation unit, the step that clothing is ventilated, and wherein dried begins with aeration step, reduces the initial peak moisture content of clothing with the air-flow by environment temperature.An embodiment also uses sensor device for example to detect the moisture content of clothing by the electrical conductivity of measuring clothing.This is to utilize the conductivity sensor (not illustrating among the figure) that comprises at least two metal electrodes (with contact with clothing) in clothing outer cover inboard to carry out.Offer the power of heater and fan assembly and thus the duration of each step be by control module according to temperature and/or conductivity readings and alternatively by the value of user's input, to consider that also desired value that especially clothing humidity reduces in aeration step is calculated.
Summary of the invention
The method that the purpose of this invention is to provide index drum formula dryer, this method is designed to eliminate above-mentioned defective, and this method is not only cheap but also realize easily.
According to the present invention, provide the method for the index drum formula dryer described in claims.
Description of drawings
By example non-limiting example of the present invention is described below with reference to accompanying drawing, in the accompanying drawings:
Fig. 1 shows relatively the chart of second voltage signal that utilizes first voltage signal that " traditional electrical guiding systems " record and utilization " guiding systems of rationing the power supply to be arranged " to record;
Fig. 2 shows the schematic side elevation of realization according to the dryer of control method of the present invention;
Fig. 3 shows the schematic diagram of a pair of small electrode that is fixed to Fig. 1 cloth drier door inboard;
Fig. 4 shows the schematic diagram that is used for the circuit of resistance between survey map 3 electrodes;
Fig. 5 shows the chart of four voltage signals that comparison records different load by Fig. 4 circuit;
Fig. 6 shows the chart of four voltage signals that comparison records 0.5kg load by Fig. 4 circuit; And
Fig. 7 shows the chart of four temperature signals that comparison records by temperature sensor.
The specific embodiment
The moisture of clothing discharges by being evaporated to the heated drying air-flow in the tube 5; And the Hot air quilt from the humidity of tube 5 is piped to condenser 11, the cold relatively air-flow cooling that this condenser is sucked from the outside by centrifugal aspirator 12.
In condenser 11, the steam in the thermal current becomes liquid by cooling condensation, and is collected in the condenser reservoir 13; Dry air from condenser 11 is sucked and feeds back in the tube 5 by fan 9, is heated element 10 and heats once more; And the extraneous air that is used for condensation is discharged from.
The condensate liquid of in condenser reservoir 13, collecting by pump 14 pumps to being arranged in than condenser reservoir 13 higher levels of condensate tank(trap)s 15; And when condensate tank(trap) 15 is full, activate known horizon sensor (not shown), stop dryer 1.The operation of dryer is by timer 16 controls, and wherein timer 16 is to be operated by button on the preceding control panel 18 or knob 17.
Condensate tank(trap) 15 cooperates with the door 7 of the loading opening of closing tube 5, and contacts with the inwall 19 of door 7.More specifically, door 7 can comprise the shell that removably holds condensate tank(trap) 15.The outer wall 20 of condensate tank(trap) 15 contact with door 7 inwall 19, and when door 7 is in the closed position, and the inwall 21 of condensate tank(trap) 15 serves as makes clothing be retained in tins 5 interior door closures.In other words, when door 7 was in the closed position, the inwall 21 of condensate tank(trap) 15 was closed to tube 5 with front opening, so that clothing is retained in the tube 5, made groove 15 both serve as water receptacle, served as again to be used for clothing is retained in so-called door closure in the tube 5.
Fig. 4 shows the example that is designed to electrode 25 is connected to the circuit 26 of measuring unit 24; R
XBe the resistance of clothing, and R
MIt is the internal driving of measuring unit 24.By measuring V
CCWith V
REFVoltage between (let us is called Vo), R
XValue can quite easily calculate.This simple schematic diagram provides basically and has converted laundry resistance/conductivity R subsequently to
XVoltage Vo.The algorithm that will describe has only been considered the Vo signal, but can easily be applied directly to R
XData.
The main weakness of electrode 25 is quite limited contact surfaces between they and the clothing, makes that the contact between the electrode 25 is uncertain.In other words, when it rotated in tube 5, clothing moved around between two electrodes 25, made that the contact resistance between clothing and two electrodes 25 continues to change, and especially for small amount, this is more variable than full load of clothes.
Therefore, the noise that sends signal by two electrodes 25 is sizable, as test resolution among Fig. 5 is shown.
Obtain the validity of the following supposition of proof from the mass data of laboratory test many times.The signal that is sent by two electrodes 25 has high noise level (comparing with the traditional electrical guiding systems), because when tube 5 rotations, clothing is in random motion, feasible clothing with the electrode actual contact is to continue to change; Thereby, the voltage Vo and the resistance R that record by measuring unit 24
XBe unsettled.
For bigger load, more stable by the signal fusing that measuring unit 24 records in the signal that little load records, because for big load, more likely contact with electrode 25 from the angle clothing of adding up.Therefore, covering " noisiness " or " vibration " of the average signal that is recorded by measuring unit 24 and the size of load is inversely proportional to.
The amount of (or vibration) only depends on contacting at random of clothing and electrode 25 because noise, therefore as long as it is stable, promptly in the beginning of dry cycle, for preceding 10-60 minute (depending on the initial absolute content of water in the clothing), the humidity amount of clothing to noise less than influence.
Vo (or the R that records by measuring unit 24
X) mean value of signal depends on the relative humidity of clothing and the size of contact surface; And the size of contact surface depends on the size of load.
Provide the above, have been found that, might measure clothes weight (being accurate to 0.5-1kg) from 0 to 6kg by assessing the noisiness in the signal that records by measuring unit 24.In other words, by being evaluated at the noise level in the resistance/conductivity instantaneous value that records between two electrodes 25, estimate the weight of clothing in the tube 5.For example, if the noise level in the resistance/conductivity instantaneous value that records between two electrodes 25 is higher than the noise level threshold value, then estimate the weight threshold that weighs less than of tube 5 interior clothings, if and the noise level in the resistance/conductivity instantaneous value that records is lower than the noise level threshold value, estimate that then the weight of clothing in the tube 5 is higher than weight threshold between two electrodes 25.
In the beginning of dry cycle, can therefore estimate the weight of clothing in the tube 5.More specifically, might determine in the tube 5 that the weight of clothings is higher than or is lower than weight threshold.In different embodiment, the weight of clothing can record by different way in the tube 5, and perhaps the little load button of being pressed on the timer 16 by the user is imported.
Application of low pass filters by will having time constant to the signal that is recorded by measuring unit 24 (promptly, resistance/conductivity between two electrodes 25), can obtain more level and smooth more easy to handle curve, shown in test resolution among Fig. 6 like that, wherein solid line shows the instantaneous value of the resistance/conductivity that records between two electrodes 25, and has been shown in dotted line the mean value of the resistance/conductivity that records between two electrodes 25.In other words, the resistance/conductivity of measuring between two electrodes 25 also comprises by application of low pass filters is calculated the mean value of the transient resistance/electrical conductivity in frame preset time to transient resistance/electrical conductivity.
Analysis to laboratory test results many times shows, if the weight of clothing is higher than weight threshold, then the resistance/conductivity when two electrodes 25 between be higher than/when being lower than resistance/conductivity threshold, can stopping drying/ironing and circulate.In other words, if the weight of clothing is higher than weight threshold, the decision that then finishes drying/ironing circulation is only based on the resistance/conductivity that is recorded by measuring unit 24.
For example, be the tube 5 of 6kg for peak load, weight threshold can be arranged to about 0.5kg.
But, if clothing weigh less than weight threshold, problem is then still arranged.In this case, it is useful also using the temperature information from temperature sensor 23.Its thought is that if load is enough not warm, then drying/ironing circulation necessarily can not stop; Therefore, before stopping drying/ironing circulation, the air themperature of tube output place must reach certain threshold level (temperature threshold); No matter when when this temperature threshold reaches at least one time, if the resistance/conductivity between two electrodes 25 is higher than/is lower than resistance/conductivity threshold, then drying/ironing circulation stops.It all is 75 ℃ that temperature threshold for example is arranged to all dryings/ironing circulation, and clearly depends on the type (NTC, thermocouple ...) of temperature sensor and in the position of tube 5 outsides.
Fig. 7 shows the chart of four temperature signals that comparison records by temperature sensor 23 in difference test; The temperature signal that is recorded by temperature sensor 23 increases in drying/ironing circulation gradually, and reduces rapidly after drying/ironing loop ends.
In brief, described control method provides the weight of estimating clothing in the tube 5; Measure the temperature of the dry air of tube output place; If clothes weight is higher than weight threshold, then the resistance/conductivity between two electrodes 25 be higher than/when being lower than resistance/conductivity threshold, stop the circulation of drying/ironing; And if clothes weight is lower than weight threshold, then is higher than/is lower than resistance/conductivity threshold and when the drying air temperature of tube output place is higher than temperature threshold, stops drying/ironing and circulate when the resistance/conductivity between two electrodes 25.
In a preferred embodiment, resistance/conductivity threshold is not constant, but depends on the type (dry or ironing) of circulation and the weight of tube 5 interior clothings.More specifically, the resistance/conductivity threshold that is used to press circulation than be used for dry cycle lower/higher; In addition, the weight of clothings is big more in the tube 5, and resistance/conductivity threshold is low more/and high more.
Above-mentioned dryer control method has many good qualities, and cheap and realization easily effectively also determines when to stop drying/ironing circulation efficiently.Therefore, the traditional electrical guiding systems of imposes important restrictions can be replaced by the new guiding systems of rationing the power supply in the tube design/construction, and wherein new the having guiding systems of rationing the power supply not have to retrain and kept simultaneously same drying property to tube.
Claims (28)
1. the method for an index drum formula dryer (1), this method may further comprise the steps:
Start drying/ironing circulation and dry air is input to tube output from tube and be fed to the tube (5); And
Resistance/conductivity between two electrodes (25) of test constantly contact tube (5) interior clothing;
And the method is characterized in that, may further comprise the steps:
Estimate the weight of tube (5) interior clothing;
Measure the temperature of the dry air of tube output place;
If the weight of clothing is higher than weight threshold, then the resistance/conductivity between two electrodes (25) be higher than/when being lower than resistance/conductivity threshold, stop the circulation of drying/ironing; And
If clothing weigh less than weight threshold, then be higher than/be lower than resistance/conductivity threshold and when the temperature of the dry air of tube output place is higher than temperature threshold, stops drying/ironing and circulate when the resistance/conductivity between two electrodes (25).
2. the method for claim 1, wherein the weight of tube (5) interior clothing is to estimate by the noise level that is evaluated in the resistance/conductivity instantaneous value that records between two electrodes (25).
3. method as claimed in claim 2, wherein, if the noise level in the resistance/conductivity instantaneous value that records between two electrodes (25) is higher than the noise level threshold value, then estimate the weight threshold that weighs less than of tube (5) interior clothing, if and the noise level in the resistance/conductivity instantaneous value that records is lower than the noise level threshold value, estimate that then the weight of tube (5) interior clothing is higher than weight threshold between two electrodes (25).
4. as claim 1,2 or 3 described methods, also comprise the step of determining as the resistance/conductivity threshold of tube (5) interior clothes weight function; The tube (5) interior clothing weight big more, resistance/conductivity threshold with regard to low more/high more.
5. as any one described method among the claim 1-3, wherein, the step of measuring resistance/conductivity between two electrodes (25) also comprises the step of calculating the mean value of transient resistance/electrical conductivity in frame preset time.
6. method as claimed in claim 4, wherein, the step of measuring resistance/conductivity between two electrodes (25) also comprises the step of calculating the mean value of transient resistance/electrical conductivity in frame preset time.
7. method as claimed in claim 5, wherein, the mean value of transient resistance/electrical conductivity is by calculating application of low pass filters in transient resistance/electrical conductivity.
8. method as claimed in claim 6, wherein, the mean value of transient resistance/electrical conductivity is by calculating application of low pass filters in transient resistance/electrical conductivity.
9. as any one described method among the claim 1-3, wherein, be the tube (5) of 6kg for peak load, weight threshold is arranged to 0.5kg, and temperature threshold is arranged to 75 ℃.
10. method as claimed in claim 4 wherein, is the tube (5) of 6kg for peak load, and weight threshold is arranged to 0.5kg, and temperature threshold is arranged to 75 ℃.
11. method as claimed in claim 5 wherein, is the tube (5) of 6kg for peak load, weight threshold is arranged to 0.5kg, and temperature threshold is arranged to 75 ℃.
12. method as claimed in claim 6 wherein, is the tube (5) of 6kg for peak load, weight threshold is arranged to 0.5kg, and temperature threshold is arranged to 75 ℃.
13. method as claimed in claim 7 wherein, is the tube (5) of 6kg for peak load, weight threshold is arranged to 0.5kg, and temperature threshold is arranged to 75 ℃.
14. method as claimed in claim 8 wherein, is the tube (5) of 6kg for peak load, weight threshold is arranged to 0.5kg, and temperature threshold is arranged to 75 ℃.
15. as any one described method among the claim 1-3, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
16. method as claimed in claim 4, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
17. method as claimed in claim 5, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
18. method as claimed in claim 6, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
19. method as claimed in claim 7, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
20. method as claimed in claim 8, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
21. method as claimed in claim 9, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
22. method as claimed in claim 10, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
23. method as claimed in claim 11, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
24. method as claimed in claim 12, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
25. method as claimed in claim 13, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
26. method as claimed in claim 14, wherein, two electrodes (25) are positioned at the inboard of the door (7) of closing tube (5).
27. a method of measuring the interior clothes weight of tube (5) of tumbler dryer (1), this method may further comprise the steps:
Start drying/ironing circulation and dry air is input to tube output from tube and be fed to the tube (5); And
Resistance/conductivity between two electrodes (25) of test constantly contact tube (5) interior clothing;
The method is characterized in that, may further comprise the steps:
Estimate the weight of tube (5) interior clothing by being evaluated at noise level in the resistance/conductivity instantaneous value that records between two electrodes (25).
28. method as claimed in claim 27 wherein, if the noise level in the resistance/conductivity instantaneous value that records is higher than the noise level threshold value, is then estimated the weight threshold that weighs less than of tube (5) interior clothing between two electrodes (25); And if the noise level in the resistance/conductivity instantaneous value that records is lower than the noise level threshold value, estimate that then the weight of tube (5) interior clothing is higher than weight threshold between two electrodes (25).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07107266.4 | 2007-04-30 | ||
| EP07107266A EP1988209B1 (en) | 2007-04-30 | 2007-04-30 | Method of controlling a tumble laundry drier |
| PCT/EP2008/003139 WO2008131876A2 (en) | 2007-04-30 | 2008-04-18 | Method of controlling a tumble laundry drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101688354A CN101688354A (en) | 2010-03-31 |
| CN101688354B true CN101688354B (en) | 2011-07-27 |
Family
ID=38537110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800140349A Expired - Fee Related CN101688354B (en) | 2007-04-30 | 2008-04-18 | Method of controlling a tumble laundry drier |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US8234796B2 (en) |
| EP (2) | EP1988209B1 (en) |
| CN (1) | CN101688354B (en) |
| AT (2) | ATE494416T1 (en) |
| BR (1) | BRPI0811006B1 (en) |
| DE (1) | DE602007011731D1 (en) |
| ES (2) | ES2359439T3 (en) |
| MX (1) | MX2009011700A (en) |
| PL (2) | PL1988209T3 (en) |
| RU (1) | RU2459020C2 (en) |
| WO (1) | WO2008131876A2 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100556503B1 (en) * | 2002-11-26 | 2006-03-03 | 엘지전자 주식회사 | Control Method of Drying Time for Dryer |
| KR101435808B1 (en) * | 2007-11-16 | 2014-08-29 | 엘지전자 주식회사 | Laundry treating machine |
| ITTO20070843A1 (en) * | 2007-11-23 | 2009-05-24 | Indesit Co Spa | METHOD FOR DETECTING THE LEVEL OF A WASHING LIQUID INSIDE A WASHING MACHINE, AND ITS WASHING MACHINE. |
| CN201321571Y (en) * | 2008-11-25 | 2009-10-07 | 博西华电器（江苏）有限公司 | Household clothes drying equipment |
| WO2010114482A1 (en) * | 2009-04-02 | 2010-10-07 | Trimech Technology Pte Ltd | Long thermode assembly |
| PL2267214T3 (en) * | 2009-06-22 | 2016-10-31 | A method for estimating the load of clothes in a household dryer and dryer using such method | |
| US8245415B2 (en) * | 2009-12-18 | 2012-08-21 | Whirlpool Corporation | Method for determining load size in a clothes dryer using an infrared sensor |
| EP2458077B1 (en) * | 2010-11-29 | 2015-05-20 | Electrolux Home Products Corporation N.V. | A method of controlling a rotatable-drum laundry drier and a rotatable-drum laundry drier implementing the method |
| US8492253B2 (en) | 2010-12-02 | 2013-07-23 | Sunpower Corporation | Method of forming contacts for a back-contact solar cell |
| EP2434047A3 (en) * | 2011-12-22 | 2012-06-13 | V-Zug AG | Household appliance, in particular laundry dryer |
| EP2716810B1 (en) * | 2012-10-05 | 2017-02-22 | Electrolux Home Products Corporation N.V. | A method for controlling a drying cycle of a laundry dryer in dependence of the load and a corresponding laundry dryer |
| EP2716811A1 (en) * | 2012-10-05 | 2014-04-09 | Electrolux Home Products Corporation N.V. | A method for controlling the rotation speed of a laundry drum in a laundry dryer and a corresponding laundry dryer |
| DE102012220687A1 (en) * | 2012-11-13 | 2014-05-15 | BSH Bosch und Siemens Hausgeräte GmbH | Method for determining at least one characteristic of items of laundry, and corresponding laundry care machine |
| EP2927363B1 (en) * | 2014-03-31 | 2019-06-12 | Electrolux Appliances Aktiebolag | Method of conducting a drying cycle in a laundry treating machine, laundry treating machine and electronic controller unit |
| CN104200125B (en) * | 2014-09-23 | 2017-03-08 | 珠海格力电器股份有限公司 | A kind of acquisition methods of drying predicted time, apparatus and system |
| CN104652089B (en) * | 2015-02-03 | 2017-01-18 | 海信（山东）冰箱有限公司 | Method for acquiring load of washing machine and washing machine |
| EP3239387B1 (en) * | 2016-04-26 | 2019-04-03 | Electrolux Appliances Aktiebolag | Method for operating a laundry drying apparatus and laundry drying apparatus |
| CN107541919B (en) * | 2016-06-27 | 2020-05-22 | 青岛海尔滚筒洗衣机有限公司 | Method for adjusting quantity of condensing medium according to temperature change of air discharged from dryer |
| CN108315988B (en) * | 2017-01-18 | 2020-08-21 | 青岛胶南海尔洗衣机有限公司 | Control method of quick clothes dryer and quick clothes dryer |
| JP7018290B2 (en) * | 2017-10-24 | 2022-02-10 | リンナイ株式会社 | Clothes dryer |
| DE102017219053A1 (en) * | 2017-10-25 | 2019-04-25 | BSH Hausgeräte GmbH | Method for determining laundry properties in a tumble dryer and suitable tumble dryer |
| CN112176647A (en) * | 2020-09-10 | 2021-01-05 | 海信（山东）冰箱有限公司 | Humidity detection device and method and roller clothes dryer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2175416A (en) * | 1985-05-16 | 1986-11-26 | Toshiba Kk | Washer-dehydrator |
| EP0226209A2 (en) * | 1985-12-16 | 1987-06-24 | Kabushiki Kaisha Toshiba | Drying machine |
| EP1321563A2 (en) * | 2001-12-21 | 2003-06-25 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry treatment device |
| CN1503864A (en) * | 2001-01-20 | 2004-06-09 | Lg电子株式会社 | Apparatus for sensing dryness degree in exhaust type clothes dryer and control method using same |
| EP1508637A2 (en) * | 2003-08-12 | 2005-02-23 | Lg Electronics Inc. | Method for controlling clothes dryer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60122600A (en) * | 1983-12-05 | 1985-07-01 | 株式会社東芝 | Operation apparatus of dryer |
| JPS6297600A (en) * | 1985-10-25 | 1987-05-07 | 株式会社日立製作所 | Control of clothing dryer |
| US4763425A (en) * | 1987-06-25 | 1988-08-16 | Speed Queen Company | Automatic clothes dryer |
| DE19736422A1 (en) * | 1997-08-21 | 1999-02-25 | Bosch Siemens Hausgeraete | Method for determining the load of a tumble dryer |
| JP2000229200A (en) * | 1999-02-09 | 2000-08-22 | Toshiba Corp | Clothing drying machine |
| DE19960310A1 (en) * | 1999-12-14 | 2001-06-28 | Bsh Bosch Siemens Hausgeraete | Device and method for measuring the load in a laundry treatment device |
| IT1320062B1 (en) * | 2000-04-28 | 2003-11-12 | Merloni Elettrodomestici Spa | METHOD FOR DRYING LINEN AND IMPLEMENTING MACHINE TALEMETODO. |
| KR100473319B1 (en) * | 2002-07-09 | 2005-03-10 | 삼성전자주식회사 | Washing machine and control method thereof |
-
2007
- 2007-04-30 DE DE602007011731T patent/DE602007011731D1/en active Active
- 2007-04-30 EP EP07107266A patent/EP1988209B1/en not_active Not-in-force
- 2007-04-30 AT AT07107266T patent/ATE494416T1/en not_active IP Right Cessation
- 2007-04-30 ES ES07107266T patent/ES2359439T3/en active Active
- 2007-04-30 PL PL07107266T patent/PL1988209T3/en unknown
-
2008
- 2008-04-18 CN CN2008800140349A patent/CN101688354B/en not_active Expired - Fee Related
- 2008-04-18 EP EP08735325A patent/EP2152952B1/en active Active
- 2008-04-18 US US12/597,674 patent/US8234796B2/en active Active
- 2008-04-18 BR BRPI0811006-9A patent/BRPI0811006B1/en not_active IP Right Cessation
- 2008-04-18 ES ES08735325T patent/ES2377034T3/en active Active
- 2008-04-18 MX MX2009011700A patent/MX2009011700A/en active IP Right Grant
- 2008-04-18 PL PL08735325T patent/PL2152952T3/en unknown
- 2008-04-18 RU RU2009144147/12A patent/RU2459020C2/en not_active IP Right Cessation
- 2008-04-18 AT AT08735325T patent/ATE531845T1/en active
- 2008-04-18 WO PCT/EP2008/003139 patent/WO2008131876A2/en active Application Filing
-
2012
- 2012-07-02 US US13/539,889 patent/US8844161B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2175416A (en) * | 1985-05-16 | 1986-11-26 | Toshiba Kk | Washer-dehydrator |
| EP0226209A2 (en) * | 1985-12-16 | 1987-06-24 | Kabushiki Kaisha Toshiba | Drying machine |
| CN1503864A (en) * | 2001-01-20 | 2004-06-09 | Lg电子株式会社 | Apparatus for sensing dryness degree in exhaust type clothes dryer and control method using same |
| EP1321563A2 (en) * | 2001-12-21 | 2003-06-25 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry treatment device |
| EP1508637A2 (en) * | 2003-08-12 | 2005-02-23 | Lg Electronics Inc. | Method for controlling clothes dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2359439T3 (en) | 2011-05-23 |
| PL1988209T3 (en) | 2011-10-31 |
| WO2008131876A2 (en) | 2008-11-06 |
| US8844161B2 (en) | 2014-09-30 |
| EP1988209A3 (en) | 2008-11-19 |
| BRPI0811006B1 (en) | 2017-10-10 |
| DE602007011731D1 (en) | 2011-02-17 |
| MX2009011700A (en) | 2009-11-10 |
| ATE531845T1 (en) | 2011-11-15 |
| EP2152952B1 (en) | 2011-11-02 |
| EP1988209A2 (en) | 2008-11-05 |
| WO2008131876A3 (en) | 2008-12-18 |
| ES2377034T3 (en) | 2012-03-21 |
| PL2152952T3 (en) | 2012-04-30 |
| US20100126038A1 (en) | 2010-05-27 |
| US20120266486A1 (en) | 2012-10-25 |
| EP1988209B1 (en) | 2011-01-05 |
| RU2459020C2 (en) | 2012-08-20 |
| CN101688354A (en) | 2010-03-31 |
| ATE494416T1 (en) | 2011-01-15 |
| US8234796B2 (en) | 2012-08-07 |
| EP2152952A2 (en) | 2010-02-17 |
| BRPI0811006A2 (en) | 2015-01-27 |
| RU2009144147A (en) | 2011-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101688354B (en) | Method of controlling a tumble laundry drier | |
| CN1978731B (en) | Drum washing-drying machine and drying time determining method | |
| US7971371B2 (en) | Apparatus and method for controlling a clothes dryer | |
| RU2453643C2 (en) | Machine for drying clothes | |
| CN103443353B (en) | Drum-type clothesdrier and control drum-type clothesdrier are to make the method for delicates drying | |
| CN101831781B (en) | Automatic drying method of drum washing machine | |
| KR100664289B1 (en) | Drying method of clothes dryer | |
| KR101138139B1 (en) | A condensing type dryer and method of controlling the same | |
| CN101082161A (en) | Barrel washing machine provided with drying procedure and control method thereof | |
| US7127832B2 (en) | Control method of clothes dryer and apparatus thereof | |
| CN107489008B (en) | Method for operating a condensation dryer and condensation dryer | |
| KR20060120828A (en) | Exausting type of dryer | |
| CN107208350B (en) | For seeking the method for washings characteristic and suitable for this condenser dryer | |
| US20170037563A1 (en) | Dryer appliances and methods for operating dryer appliances utilizing wireless moisture data transfer systems | |
| US10151061B1 (en) | Dryer appliances and methods of operation | |
| KR101474432B1 (en) | Dry method for washer | |
| KR101053608B1 (en) | Control method of condensation type clothes dryer | |
| JPH08141290A (en) | Method for detecting volume of clothing to be dried in clothing dryer and method for estimating drying time | |
| EP4212664A1 (en) | Dryer with a heat pump and a water container comprising an electrode and process for its operation | |
| JPH06190196A (en) | Clothing drying machine | |
| US20240117550A1 (en) | Systems and methods for operating a laundry treatment appliance to detect erroneous moisture levels | |
| KR101565405B1 (en) | A Luandry Dryer and a Controlling Method of the Laundry Dryer | |
| WO2015028071A1 (en) | Heat pump laundry dryer with system for monitoring level of dryness | |
| CN117265853A (en) | Drying control method of clothes treatment equipment and clothes treatment equipment | |
| KR20210130662A (en) | Dryer and method for controlling the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 |